Understanding and mapping pre-settlement fire regimes is vitally important for ecosystem restoration, helping ensure the proper placement of fire back into ecosystems that formerly burned. Witness trees�trees listed in early land deeds from the 1752�1899 period�can can help answer questions of where to restore fire by serving as a pyro-indicator of the past. Using an existing database of witness trees, researchers mapped fire-adapted traits across a landscape by categorizing tree species into two classes, pyrophiles and pyrophobes, and applying this classification to a geospatial layer of witness-tree points centered on the Monongahela National Forest in West Virginia. The percentage of pyrophilic species to pyrophobic species was calculated for approximately 22,000 points and the values were spatially extrapolated to form a continuous cover. Analyses showed that pyrophilic percentage was significantly related to a number of key environmental factors and changed along an elevation gradient from low, dry valleys (high pyrophilic percentage) to high, wet mountaintops (low pyrophilic percentage). This approach of applying life-history traits and species presence locations represents a significant advancement in the direct use of witness trees to depict past fire regimes applicable to both Public Land Survey and metes-and-bounds records.